Refrigerator

Abstract

The utility model discloses a refrigerator, refrigerator includes: casing, inner bag and fan module. Fan module includes fan, air duct structure and stop piece, and the air duct structure forms with installation cavity and the communicating port, and the communicating port is communicated with the accommodation cavity, and the fan is located in the installation cavity, and the at least partial lateral wall of installation cavity is open and forms the opening, and the opening is communicated with the communicating port, stop piece is used for changing the air flow direction of the air of the outflow side of fan module to the communicating port. Therefore, the internal structure of fan module is optimized, when the refrigerator defrosts, the hot air flow direction of the outflow side of fan module to the communicating port is changed, the rising path of hot air is blocked, a large amount of hot air is avoided to directly rise to the communicating port communicated with the freezing chamber, the hot air into the freezing chamber is effectively reduced, thereby the temperature rise of freezing chamber is reduced, the energy consumption of refrigerator defrosting is reduced, simultaneously, the energy consumption of refrigerator defrosting recovery period is reduced, the fresh -keeping effect and reliability of refrigerator are improved.

Description

Technical Field

[0001] This utility model relates to the field of refrigerator technology, and in particular to a refrigerator. Background Technology

[0002] In the prior art, when a refrigerator defrosts, hot air enters the cavity of the fan assembly from the fan intake. Since hot air has a low density, it usually rises from the exhaust side of the fan assembly to the upper exhaust vent and enters the freezer storage space, causing the temperature of the freezer storage space to rise, which can easily lead to increased refrigerator energy consumption. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the purpose of this invention is to provide a refrigerator that can reduce energy consumption.

[0004] According to an embodiment of the present invention, the refrigerator includes: a shell, an inner liner, and a fan assembly. The inner liner forms a receiving cavity, and the side of the inner liner away from the receiving cavity defines an air outlet cavity with the shell. The fan assembly is disposed within the air outlet cavity and includes a fan, an air duct structure, and a blocking member. The air duct structure forms a mounting cavity and a connecting port, and the connecting port communicates with the receiving cavity. The fan is disposed within the mounting cavity, and at least a portion of the sidewall of the mounting cavity is open to form an opening, which communicates with the connecting port. The blocking member is disposed between the air outlet side of the fan assembly and the connecting port, and the blocking member is used to change the airflow direction from the air outlet side of the fan assembly to the connecting port.

[0005] According to the refrigerator of this utility model embodiment, the internal structure of the fan assembly is optimized by setting the blocking component. When the refrigerator is defrosting, the flow direction of hot air flowing from the air outlet side of the fan assembly to the connecting port is changed, blocking the upward path of the hot air and preventing a large amount of hot air from rising directly to the connecting port connected to the freezer compartment. This effectively reduces the amount of hot air entering the freezer compartment, thereby reducing the temperature rise of the freezer compartment, reducing the energy consumption of the refrigerator during defrosting, and at the same time reducing the energy consumption during the defrosting recovery period, improving the preservation effect and reliability of the refrigerator.

[0006] In some embodiments, the communication port includes: a first communication port located on the outer periphery of the air duct structure and on the side of the fan adjacent to the top of the housing, wherein at least a portion of the sidewall of the blocking member is located between the first communication port and the fan.

[0007] Therefore, during the defrosting process of the refrigerator, a large amount of hot air can be effectively prevented from flowing from above the fan to the first connection port, thereby reducing the amount of hot air entering the freezer compartment through the first connection port, reducing the temperature rise of the freezer compartment, and effectively reducing the energy consumption of the refrigerator.

[0008] In some embodiments, at least a portion of the sidewall of the mounting cavity adjacent to the first communication port is configured as the blocking element.

[0009] This improves the processing efficiency and reliability of the blocking components, while reducing the production cost of the air duct structure and enabling a lightweight design of the air duct structure.

[0010] In some embodiments, the blocking member is disposed on one side of the air duct structure adjacent to the first communication opening, the blocking member and the fan are arranged radially spaced apart along the fan, and at least a portion of the blocking member is arranged radially opposite to the opening along the fan.

[0011] This effectively prevents a large amount of hot air from the exhaust side of the fan assembly from rising directly to the first connection port, avoids interference between the obstruction and the fan, and provides sufficient space for air circulation.

[0012] In some embodiments, the blocking element is configured to reduce the area of ​​the opening opposite to the first communication port.

[0013] Therefore, during the defrosting process of the refrigerator, the blocking component is connected to the guide component to reduce the area of ​​the opening and the first connecting port relative to each other, thereby preventing a large amount of hot air from rising directly from the opening to the first connecting port and effectively reducing the temperature rise of the freezer compartment.

[0014] In some embodiments, the communication port further includes a second communication port, which is spaced apart from the first communication port along the circumferential direction of the fan, and the height of the first communication port along the height direction of the housing is greater than or equal to the height of the second communication port along the height direction of the housing.

[0015] This effectively prevents a large amount of hot air from entering the freezer compartment through the first connection port. At the same time, it prevents interference between the airflows flowing to the first and second connection ports, thus improving the reliability of the refrigerator.

[0016] In some embodiments, the blocking member extends circumferentially along the fan, with one end of the blocking member extending circumferentially along the fan and toward the other end connected to the air duct structure, in a direction away from the fan.

[0017] This allows the projection of the blocking component in the second direction to completely cover the projection of the fan in the second direction, effectively changing the flow direction of hot air on the outlet side of the fan assembly, blocking the upward path of hot air above the fan, preventing a large amount of hot air from rising directly to the first connection port, effectively reducing the amount of hot air entering the freezer compartment, thereby reducing the temperature rise of the freezer compartment.

[0018] In some embodiments, the shape of the projection of the blocking member along the axial direction of the fan is an involute shape.

[0019] Therefore, it can effectively guide the airflow on the outlet side of the fan assembly, improve the flow rate and uniformity of the airflow to the outlet, reduce the resistance and noise of the airflow, and at the same time, a smooth transition can be formed between the blocking component and the guiding component, improving the reliability and stability of the duct structure.

[0020] In some embodiments, the radius of the fan is R, and the distance between the blocking member along the radial direction of the fan and the central axis of the fan is D, wherein D and R satisfy: R+10mm≤D≤R+20mm.

[0021] This ensures that there is sufficient space for airflow between the baffle and the fan, reducing airflow resistance. At the same time, it ensures that the baffle is located below the first connection port, effectively blocking the upward path of hot air and reducing the energy consumption of the refrigerator defrosting.

[0022] In some embodiments, the length of the blocking member extending circumferentially along the fan is L1, and the circumferential length of the fan is L2, wherein L1 and L2 satisfy: 1 / 4L2≤L1≤3 / 4L2.

[0023] This ensures that the projection of the blocking component in the second direction completely covers the projection of the fan in the second direction, effectively blocking the upward path of hot air, reducing refrigerator defrosting energy consumption, reducing production costs, and improving the air exhaust efficiency on the outlet side of the fan assembly.

[0024] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0025] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of a fan assembly according to an embodiment of the present utility model; Figure 2 This is a schematic diagram of a fan assembly according to an embodiment of the present utility model from another perspective; Figure 3 This is a schematic diagram of a fan assembly according to another perspective of an embodiment of the present utility model; Figure 4 This is a cross-sectional schematic diagram of a fan assembly according to an embodiment of the present utility model; Figure 5 yes Figure 4 Enlarged schematic diagram of region P in the middle; Figure 6 This is a three-dimensional disassembled schematic diagram of the fan assembly according to an embodiment of the present utility model; Figure 7 This is a schematic diagram of the second air duct structure according to an embodiment of the present utility model; Figure 8 This is a schematic diagram of the second air duct structure according to an embodiment of the present utility model from another perspective; Figure 9 This is a schematic diagram of the first air duct structure according to an embodiment of the present utility model.

[0026] Figure label: 100. Fan components; 10. Fan; 11. Air duct structure; 12. First air duct structure; 13. Second air duct structure; 14. Connecting port; 141. First connecting port; 142. Second connecting port; 15. Opening; 16. Blocking component; 17. Guide component; A. First direction; B. Second direction; C. Third direction. Detailed Implementation

[0027] The embodiments of this utility model are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. Figures 1-9 The refrigerator according to an embodiment of the present utility model includes: a shell, an inner liner, and a fan assembly 100.

[0028] Specifically, such as Figures 1-7 As shown, the inner liner forms a receiving cavity, and the side of the inner liner away from the receiving cavity defines an air outlet cavity with the shell; the fan assembly 100 is disposed in the air outlet cavity, and the fan assembly 100 includes a fan 10, an air duct structure 11 and a blocking member 16. The air duct structure 11 forms a mounting cavity and a connecting port 14. The connecting port 14 communicates with the receiving cavity. The fan 10 is disposed in the mounting cavity, and at least a portion of the sidewall of the mounting cavity is open to form an opening 15, which communicates with the connecting port 14; wherein, the blocking member 16 is disposed between the air outlet side of the fan assembly 100 and the connecting port 14, and the blocking member 16 is used to change the airflow direction from the air outlet side of the fan assembly 100 to the connecting port 14.

[0029] In this embodiment, the refrigerator includes multiple compartments, and the air duct structure 11 includes multiple connecting ports 14, which are respectively connected to the corresponding compartments to meet the different storage needs of food inside the refrigerator. The air duct structure 11 includes a first air duct structure 12 and a second air duct structure 13. The first air duct structure 12 is disposed along the fan assembly 100. Figure 4 In the first direction A, adjacent to the receiving cavity, the second air duct structure 13 is disposed along the fan assembly 100. Figure 4On the side of the first direction A away from the receiving cavity, the first air duct structure 12 and the second air duct structure 13 cooperate to define the mounting cavity. The fan 10 is located in the mounting cavity. The air inlet side of the fan assembly 100 is located on the side of the second air duct structure 13 away from the first air duct structure 12 along the first direction A. Air can enter the mounting cavity from the air inlet side of the fan assembly 100. The air outlet side of the fan assembly 100 is located on the side of the second air duct structure 13 adjacent to the first air duct structure 12 along the first direction A. The fan 10 and the opening 15 are both located on the air outlet side of the fan assembly 100. Air can enter the receiving cavity from the air outlet side of the fan assembly 100 through the connecting port 14. The blocking member 16 is located on the side of the second air duct structure 13 adjacent to the connecting port 14 along the first direction A. The blocking member 16 is located between the air outlet side of the fan assembly 100 and the connecting port 14 that communicates with the freezer compartment. When the refrigerator is defrosting, the fan 10 stops working, and hot air enters the mounting cavity from the air inlet side of the fan assembly 100. The blocking member 16 can prevent a large amount of hot air from the air outlet side of the fan assembly 100 from rising directly to the connecting port 14 that communicates with the freezer compartment.

[0030] According to the refrigerator of this utility model embodiment, the internal structure of the fan assembly 100 is optimized by setting the blocking member 16. When the refrigerator is defrosting, the direction of the hot air flowing from the air outlet side of the fan assembly 100 to the connecting port 14 is changed, blocking the upward path of the hot air and preventing a large amount of hot air from rising directly to the connecting port 14 connected to the freezer compartment. This effectively reduces the amount of hot air entering the freezer compartment, thereby reducing the temperature rise of the freezer compartment, reducing the energy consumption of the refrigerator during defrosting, and at the same time reducing the energy consumption during the defrosting recovery period, improving the preservation effect and reliability of the refrigerator.

[0031] According to some embodiments of this utility model, such as Figure 4 and Figure 5 As shown, the connection port 14 includes: a first connection port 141, which is located on the outer periphery of the air duct structure 11 and on the side of the fan 10 adjacent to the top of the housing, and at least a portion of the sidewall of the blocking member 16 is located between the first connection port 141 and the fan 10.

[0032] In this embodiment, the first connecting port 141 is the connecting port 14 that communicates with the freezer compartment. The first connecting port 141 is provided on the first air duct structure 12, and the first connecting port 141 penetrates the first air duct structure 12 along the first direction A. Figure 5 The second direction B is located on the side of the fan 10 near the top of the housing, wherein the second direction B is the height direction of the refrigerator, and at least a portion of the sidewall of the blocking member 16 is located between the first communication port 141 and the fan 10 along the second direction B.

[0033] Therefore, since at least part of the sidewall of the blocking member 16 is located between the first connecting port 141 and the fan 10, a large amount of hot air can be effectively prevented from flowing from above the fan 10 to the first connecting port 141 during the defrosting of the refrigerator, thereby reducing the amount of hot air entering the freezer compartment through the first connecting port 141, reducing the temperature rise of the freezer compartment, and effectively reducing the energy consumption of the refrigerator.

[0034] According to some embodiments of the present invention, at least a portion of the sidewall of the mounting cavity adjacent to the first communication port 141 is configured as a blocking member 16.

[0035] In this embodiment, combined with Figure 7 and Figure 8 At least a portion of the sidewall of the second air duct structure 13 adjacent to the first connection port 141 along the first direction A is configured as a blocking member 16 and a guide member 17. The blocking member 16 and the guide member 17 can define the flow path of hot air. The ends of the blocking member 16 and the guide member 17 adjacent to each other are connected to each other. The blocking member 16, the guide member 17, and the second air duct structure 13 are integrally formed, and the side of the blocking member 16 adjacent to the first connection port 141 along the first direction A forms a fit with the first air duct structure 12. As a result, the processing efficiency and reliability of the blocking member 16 can be improved, while the production cost of the air duct structure 11 can be reduced, realizing the lightweight design of the air duct structure 11.

[0036] According to some embodiments of this utility model, such as Figure 5 and Figure 7 As shown, the blocking member 16 is disposed on one side of the air duct structure 11 adjacent to the first connecting port 141. The blocking member 16 and the fan 10 are arranged at a radial distance along the fan 10. At least a portion of the blocking member 16 is arranged opposite to the opening 15 along the radial direction of the fan 10.

[0037] In this embodiment, the blocking member 16 is disposed along the first direction A on one side of the second air duct structure 13 adjacent to the first communication port 141, and the blocking member 16 and the fan 10 are spaced apart in the radial direction of the fan 10, and at least a portion of the sidewall of the blocking member 16 is disposed opposite to the opening 15 in the radial direction of the fan 10.

[0038] Therefore, by placing the baffle 16 on the side of the air duct structure 11 adjacent to the first connection port 141, and by having at least a portion of the baffle 16 arranged radially opposite to the opening 15 along the fan 10, a large amount of hot air from the outlet side of the fan assembly 100 can be effectively prevented from rising directly to the first connection port 141, thereby reducing the temperature rise of the freezer compartment. By arranging the baffle 16 and the fan 10 radially apart, interference between the baffle 16 and the fan 10 can be avoided, providing sufficient space for airflow.

[0039] According to some embodiments of the present invention, the blocking member 16 is configured to reduce the area of ​​the opening 15 opposite to the first communication port 141.

[0040] Optionally, the blocking member 16 is separately disposed from the air duct structure 11. When the refrigerator is defrosting, the blocking member 16 is connected to the guide member 17 to reduce the area of ​​the opening 15 and the first connecting port 141 opposite each other, thereby preventing a large amount of hot air from rising directly from the opening 15 to the first connecting port 141 and effectively reducing the temperature rise of the freezer compartment. When the refrigerator is cooling, the blocking member 16 is separated from the guide member 17 to increase the area of ​​the opening 15 and the first connecting port 141 opposite each other, thereby increasing the air intake at the first connecting port 141 and improving the cooling efficiency and cooling effect of the refrigerator.

[0041] According to some embodiments of this utility model, such as Figure 1 and Figure 9 As shown, the connecting port 14 also includes a second connecting port 142, which is spaced apart from the first connecting port 141 along the circumference of the fan 10. The height of the first connecting port 141 along the height direction of the housing, i.e., the second direction B, is greater than or equal to the height of the second connecting port 142 along the height direction of the housing.

[0042] In this embodiment, airflow can flow to other compartments through the second connecting port 142. The first connecting port 141 and the second connecting port 142 are arranged circumferentially adjacent to the fan 10. In the second direction B, the height of the first connecting port 141 is greater than the height of the second connecting port 142, that is, the second connecting port 142 is located below the first connecting port 141. The hot air on the air outlet side of the fan assembly 100 flows to the opening 15 along the flow path between the blocking member 16 and the guide member 17 and the fan 10. Part of the hot air at the opening 15 flows to the second connecting port 142, part of the hot air flows to the variable temperature chamber, and part of the hot air flows to the first connecting port 141.

[0043] Therefore, by setting the second connecting port 142 and the first connecting port 141 at intervals along the circumference of the fan 10, and by setting the height of the first connecting port 141 greater than the height of the second connecting port 142, a large amount of hot air can be effectively prevented from entering the freezer compartment through the first connecting port 141. At the same time, interference between the airflow flowing to the first connecting port 141 and the second connecting port 142 can be avoided, thereby improving the reliability of the refrigerator.

[0044] According to some embodiments of this utility model, such as Figure 7 As shown, the blocking member 16 extends circumferentially along the fan 10, and one end of the blocking member 16 extends circumferentially along the fan 10 and toward the other end connected to the air duct structure 11, toward a direction away from the fan 10.

[0045] In this embodiment, one end of the blocking member 16 is along Figure 7The third direction C is located on the side of the fan 10 away from the guide member 17. The other end of the blocking member 16 extends along the circumference of the fan 10 in a direction away from the fan 10, and the other end of the blocking member 16 is connected to one end of the guide member 17. The other end of the guide member 17 extends along the circumference of the fan 10 in a direction away from the fan 10.

[0046] Therefore, by extending the other end of the blocking member 16 along the circumference of the fan 10 and in a direction away from the fan 10, the projection of the blocking member 16 in the second direction B completely covers the projection of the fan 10 in the second direction B. This can effectively change the flow direction of hot air on the outlet side of the fan assembly 100, block the upward path of hot air above the fan 10, and prevent a large amount of hot air from rising directly to the first connecting port 141. This effectively reduces the amount of hot air entering the freezer compartment, thereby reducing the temperature rise of the freezer compartment. At the same time, the blocking member 16, combined with the guide member 17, causes some of the hot air on the outlet side of the fan assembly 100 to flow spirally to the first connecting port 141 or the second connecting port 142.

[0047] According to some embodiments of this utility model, such as Figure 7 As shown, the shape of the projection of the blocking member 16 along the axial direction of the fan 10, i.e., the first direction A, is an involute shape.

[0048] In this application, the projection of the blocking member 16 onto the duct structure 11 along the first direction A is involute. Therefore, by designing the extended shape of the blocking member 16 as an involute, it can effectively guide the airflow on the outlet side of the fan assembly 100, improving the flow velocity and uniformity of the airflow towards the outlet, reducing airflow resistance and noise. Simultaneously, a smooth transition can be formed between the blocking member 16 and the guide member 17, improving the reliability and stability of the duct structure 11.

[0049] According to some embodiments of this utility model, the radius of the fan 10 is R, and the distance between the blocking member 16 along the radial direction of the fan 10 and the central axis of the fan 10 is D, where D and R satisfy: R+10mm≤D≤R+20mm. For example, D=R+15mm.

[0050] That is, the radial distance between the blocking member 16 and the outer periphery of the fan 10 along the fan 10 is about 10mm-20mm. When the radial distance between the blocking member 16 and the outer periphery of the fan 10 along the fan 10 is less than 10mm, the radial distance between the blocking member 16 and the outer periphery of the fan 10 along the fan 10 is too small, which may result in too small a flow space between the blocking member 16 and the fan 10, which may easily increase the resistance to airflow and reduce the airflow velocity. When the radial distance between the blocking member 16 and the outer periphery of the fan 10 along the fan 10 is greater than 20mm, the radial distance between the blocking member 16 and the outer periphery of the fan 10 along the fan 10 is too large, which may result in the height of the blocking member 16 in the second direction B being higher than the first connecting port 141, and a large amount of hot air on the air outlet side of the fan assembly 100 may easily rise directly to the first connecting port 141.

[0051] Therefore, by limiting the radial distance range between the obstruction member 16 and the outer periphery of the fan 10, sufficient flow space can be provided between the obstruction member 16 and the fan 10 to reduce airflow resistance and improve airflow transmission efficiency. At the same time, it ensures that the obstruction member 16 is located below the first connecting port 141, effectively blocking the upward path of hot air and preventing a large amount of hot air from rising directly to the first connecting port 141. This effectively reduces the amount of hot air entering the freezer compartment, reduces the temperature rise of the freezer compartment, and lowers the defrosting energy consumption of the refrigerator.

[0052] According to some embodiments of the present invention, the length of the blocking member 16 extending along the circumference of the fan 10 is L1, and the circumferential length of the fan 10 is L2. L1 and L2 satisfy: 1 / 4L2≤L1≤3 / 4L2.

[0053] When the length of the obstruction member 16 extending circumferentially along the fan 10 is less than one-quarter of the circumferential length of the fan 10, the length of the obstruction member 16 extending circumferentially along the fan 10 is too small, and the projection of the obstruction member 16 in the second direction B cannot completely cover the projection of the fan 10 in the second direction B, which may result in the obstruction member 16 failing to effectively block the upward path of hot air. When the length of the obstruction member 16 extending circumferentially along the fan 10 is greater than three-quarters of the circumferential length of the fan 10, the length of the obstruction member 16 extending circumferentially along the fan 10 is too large, increasing production costs. At the same time, the opening 15 becomes smaller, and the air exhaust efficiency on the outlet side of the fan assembly 100 decreases. For example, L1 = 1 / 2L2.

[0054] Therefore, by limiting the length range of the blocking member 16 extending circumferentially along the fan 10, it can be ensured that the projection of the blocking member 16 in the second direction B completely covers the projection of the fan 10 in the second direction B, thereby effectively blocking the upward path of hot air, reducing the defrosting energy consumption of the refrigerator, reducing production costs, and improving the air exhaust efficiency of the fan assembly 100 on the air outlet side.

[0055] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0056] In the description of this utility model, "first feature" and "second feature" may include one or more of the features. In the description of this utility model, "multiple" means two or more. In the description of this utility model, "above" or "below" the second feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. In the description of this utility model, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature.

[0057] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0058] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A refrigerator, characterized in that, include: case; The inner liner has a receiving cavity, and the side of the inner liner away from the receiving cavity defines an air outlet cavity with the shell; A fan assembly is disposed within the air cavity. The fan assembly includes a fan, an air duct structure, and a blocking component. The air duct structure forms an installation cavity and a connecting port. The connecting port communicates with the receiving cavity. The fan is disposed within the installation cavity. At least a portion of the sidewall of the installation cavity is open to form an opening, which communicates with the connecting port. The blocking member is disposed between the air outlet side of the fan assembly and the connecting port, and the blocking member is used to change the airflow direction from the air outlet side of the fan assembly to the connecting port.

2. The refrigerator according to claim 1, characterized in that, The communication port includes: The first connection port is located on the outer periphery of the air duct structure and on the side of the fan adjacent to the top of the housing. At least a portion of the sidewall of the blocking member is located between the first connection port and the fan.

3. The refrigerator according to claim 2, characterized in that, At least a portion of the sidewall of the mounting cavity adjacent to the first communication port is configured as the blocking element.

4. The refrigerator according to claim 2, characterized in that, The blocking member is disposed on the side of the air duct structure adjacent to the first communication opening. The blocking member and the fan are arranged radially apart. At least a portion of the blocking member is arranged radially opposite to the opening.

5. The refrigerator according to claim 2, characterized in that, The blocking element is configured to reduce the area of ​​the opening opposite to the first communication port.

6. The refrigerator according to claim 2, characterized in that, The communication port further includes a second communication port, which is spaced apart from the first communication port along the circumference of the fan, and the height of the first communication port along the height direction of the housing is greater than or equal to the height of the second communication port along the height direction of the housing.

7. The refrigerator according to claim 1, characterized in that, The blocking member extends circumferentially along the fan, with one end of the blocking member extending circumferentially along the fan and toward the other end connected to the air duct structure, in a direction away from the fan.

8. The refrigerator according to claim 1, characterized in that, The shape of the projection of the blocking member along the axial direction of the fan is an involute shape.

9. The refrigerator according to claim 1, characterized in that, The radius of the fan is R, and the distance between the blocking member along the radial direction of the fan and the central axis of the fan is D. The distances D and R satisfy: R+10mm≤D≤R+20mm.

10. The refrigerator according to any one of claims 1-9, characterized in that, The length of the blocking member extending along the circumference of the fan is L1, and the circumferential length of the fan is L2. L1 and L2 satisfy: 1 / 4L2≤L1≤3 / 4L2.

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